OpenTechnical

OT-2026-000048738

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off after set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000048738) never changes.

Identity and time

Publication numberOT-2026-000048738 · never reused
Internal UUID01a0ae80-c32c-77cb-9d4b-7873826ca4a5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048738
StatusPUBLIC

Content hashes

Canonical text9702f4562bb8640fe4a64bd964d3978a9dff3f87dc359399dac48ad59542a06a
Markdown9cc19b5ac0d015f972993d4b6f2e33493df7c4ac54fcf8f349a821785a789e3b
PDF
Publication page7b02b505c2ec2cb32eda83218681816b9ee7dd69d226c5e031f42a0f73c6784f
Manifest3b1ae0e7205ef5a7e6a5d4f9771b980940988fcd66f5885f2cec2c1eddae7662

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturerYNPmiFiLAMlsmYqd2cNuIHqdkJgJkTjwnatvA+qXT3C00/RiXlQPv9Y22AoYPa+q9/a1o6zLu1uoyWgqHMMAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:43:32.577479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738
observed 7b02b505c2ec2cb32eda83218681816b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:43:32.420193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738/manifest.json
observed 3b1ae0e7205ef5a7e6a5d4f9771b9809...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:43:32.219270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738/publication.md
observed 9cc19b5ac0d015f972993d4b6f2e3349...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:43:31.905102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738/publication.txt
observed 9702f4562bb8640fe4a64bd964d3978a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:04:23.545375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738
observed 7b02b505c2ec2cb32eda83218681816b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:23.526907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738/manifest.json
observed 3b1ae0e7205ef5a7e6a5d4f9771b9809...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:23.502560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738/publication.md
observed 9cc19b5ac0d015f972993d4b6f2e3349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:23.481430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048738/publication.txt
observed 9702f4562bb8640fe4a64bd964d3978a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.